Method and apparatus for scaling image data having associated transparency data
US5920659A · kind A · utility
69Cited by
11References
13Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 24, 1996 |
| Grant date | Jul 6, 1999 |
| Priority date | — |
| Expiry date | Jun 24, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T3/40
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The resolution of one or more components of image data is changed to generate scaled image data and transparency processing is applied to the scaled image data, wherein the transparency processing is taken into account during the changing of the resolution of the image data. In a preferred embodiment in which a video codec applies transparency processing during the compression of subsampled video data, the capture processor applies the same transparency mask during data subsampling to decrease color-bleeding effects that may otherwise appear in the decoded video stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.